baber/WOPTO huggingface dataset:
Patent GB-1298632-A (GB)
Title: Improvements in and relating to apparatus for dividing webs of material
IPC: B65H35/02
Filed: 1970-01-12
Abstract: 1298632 Cutting rolls of material FELDMUHLE ANALGEN-UND PRODUKTIONS GmbH 12 Jan 1970 [11 Jan 1969(2)] 1437/70 Heading B4B Apparatus for cutting a web of material as it is fed from a roll 2 comprises a blade head 1 including a rotatable blade 9 on a shaft 8, the blade head being pivoted to an arm 15 at 14 and the axis of the shaft making an acute angle α with the axis of the roll. The angle α is preferably 1À5 to 8 degrees. The arm is movable sideways to adjust the width of the web cut by a motor 19 which drives a threaded spindle (not shown) and is supported by spring suspension means 16. A sensor 4, which may be a roller, rests on part 2a of the roll from which the cut web 3 is fed, the relative positions of the sensor 4 and the blade 9 being adjustable by a screw to control the depth of cutting. The pressure of the blade on the roll 2a may be increased by a double-acting pneumatic or hydraulic piston, (22) Fig. 3 (not shown), acting on a lever (21). Modifications (not shown) include the provision of fins on the blade or blade hub to direct cooling air to the blade edge. The sensor 4 may be replaced by a photoelectric sensor for pressure sensitive webs, the depth of penetration being regulated by means of a reflection light barrier. Further springs may be provided for applying and removing loads and the weight of the cutting head may be adjusted by a movable weight on a lever. The blade preferably cuts through one layer of the web at a time and its peripheral speed is 0À5 to 1À2 times the speed of the web. A plurality of cutters could operate on a roll simultaneously. The cutting blade may be of the kind having the shape of a convex sided square (not shown).
Patent GB-339837-A (GB)
Title: Improvements relating to pneumatic shock absorbers for vehicles
IPC: F16F9/02
Filed: 1930-01-16
Abstract: 339,837. Rheinische Metallwaarenund Maschinenfabrik S÷mmerda Akt.-Ges., and Faudi, F. Jan. 16, 1930, Pneumatic s p r i n g s; fluid - friction vibrationdampers.-In pneumatic shock-absorbers in which rebound, damping is obtained by means of an air cushion provided in a compartment separated from the main air pressure chamber, the rebound damping compartment is in two parts, the construction being such that the combined volume of the two parts is decreased during recoil and the connection between the two parts is through small holes g and a non-return valve device i. In one form, a cylinder a is divided by a piston into a main damping compartment a<1> and a rebound damping. compartment a<2>, the latter having the lower air pressure. The interior e of the hollow piston rod communicates with the rebound damping compartment through apertures g, h, and the passage of air to the space e is throttled by an elastic ring i, covering some of the holes h during the upward movement of the piston. The compartment a<2> may communicate with a container instead of with the hollow piston rod.
Patent GB-590623-A (GB)
Title: Improvements in or relating to cast structures with continuous ribs extending aroundand along the structure
IPC: B29C48/86
Filed: 1945-01-19
Abstract: 590,623. Tubular heat exchange elements. ARON, E., and POLLARD, E. Jan. 19, 1945, No. 1629. [Class 64 (iii)] [Also in Groups V and XXII] To facilitate the production of a heat exchanger by casting of a structure having a continuous encircling rib with a number of convolutions, these are formed parallel to one another and to a plane normal to the axis of the structure as regards their major portions 74 and each convolution is connected to an adjacent one by a short portion 112 inclined to said plane, these short lengths being adjacent one to another. The sides 113 of the rib are parallel or slightly tapered to facilitate drawing the pattern from the mould and the bottom 114 of the channel 75 may be rounded. The structure may be formed and mounted, as the heating device, on the nozzle of a machine for extruding plastic material.
Patent GB-1116828-A (GB)
Title: Guide vane arrangement in reversible pump-turbines and pumps
IPC: F03B3/18
Filed: 1965-11-26
Abstract: 1,116,828. Hydraulic turbines; centrifugal pumps. HITACHI Ltd. Nov. 26, 1965 [Jan. 25, 1965 (2)], No. 1778/67. Divided out of 1,116,727. Headings F1C and F1T. To reduce vibrations in a circular row of adjustable guide vanes 4, 5, 6 of a pump or pumpturbine of the Francis type, the ratio <SP>r</SP>1<SP>-r</SP>2<SP>/AE </SP>is between 0À15 and 0À05. The row of adjustable guide vanes is surrounded by a circular row of fixed guide vanes (not shown).
Patent GB-427834-A (GB)
Title: Improvements in apparatus for ship propulsion
IPC: F01D15/02
Filed: 1934-01-18
Abstract: 427,834. Motor power plant. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and PREISIG, P., 12, Danson Mead, Welling, Kent. Jan. 18, 1934, No. 1795. [Class 110 (iii)] A plant for ship propulsion comprises a highpressure turbine 5, a reciprocating engine 1, and an exhaust turbine 6 which discharges to a condenser 17. The turbines drive the reciprocator shaft through a controlled electric coupling comprising a generator 7 which supplies current for a motor 4 and for other purposes. The turbines are speed-governed, the governor 9 controlling the main throttle valve or valves 8, and a valve 15 in the connection 14 between the reciprocator and the L.P. turbine. The valve 15 is also controlled so that it closes automatically when the pressure in the pipe 14 falls below a predetermined value. When the pressure in the pipe 12 between the H.P. turbine 5 and the reciprocator 1 falls below a predetermined value, a reducing valve 10 opens automatically and admits boiler steam through a de-superheater 11 for use in the reciprocator. If the pressure in the pipe 12 rises unduly, a valve 13 opens automatically to pass steam to the first stage of the L.P. turbine 6. The arrangement enables the turbines to be used for lighting and other services while the reciprocating engine is stopped. The reciprocator is started by opening a valve 20 which may be interlocked with an isolation valve 16. Upon undue pressure arising in the exhaust 14 of the reciprocator, a valve 19 opens connection to the condenser 17. Fig. 2 shows a modification in which the exhaust steam from the H.P. turbine 5 is passed to a heat-exchanger 22 in which feed water from the condenser 17 is evaporated. The steam so supplied to the pipe 12 may be superheated. A further modification in which an additional low-pressure boiler may feed the pipe 12 is described.
Patent GB-413699-A (GB)
Title: Improvements in and relating to machines for the manufacture of slab material more particularly asbestos fibre slabs
IPC: B28B1/52
Filed: 1933-01-19
Abstract: 413,699. Endless - belt conveyers. CAPE ASBESTOS CO., Ltd., 26, Holborn Viaduct, London, KING, F. W., 18, Hurstbourne Gardens, Barking, Essex, and LEPINE, L. L., 17, Cambridge Road, Southport, Lancashire. Jan. 19, 1933, No. 1822. [Class 78 (i).] The delivery end of an endless-belt conveyer is pivoted at 28 to the main portion 29 and can be fixed in any adjusted position by bolts 32b engaging slots in curved projecting arms 32 fixed to the member 29. A roller 31, for supporting the belt at this point, is pivoted at 31<a> in slotted sliding blocks 33 which are fixed in adjusted position by the bolts 33a.
Patent GB-602326-A (GB)
Title: Improvements in or relating to holders for containers, such as jars, canisters, bottles and the like
IPC: A47J47/16
Filed: 1945-01-23
Abstract: 602,326. Holders for jars, &c. KENNEDY, J. F. Jan. 23, 1945, No. 1840. [Class 52(v)] A holder for a jar, &c. having a rim F, &c., to serve as a bearing surface, e.g. for sliding the jar, &c., along prongs Z into the holder, has a lid L resiliently and/or slidably fitted so as to effect positive closure of the jar, &c. Tongues T secured to the lid slide in lugs O. The lid L may be dished and may have a rubber sealing ring. The holder may be fixed at C to a shelf S, and a part of the holder may extend to form part of a second holder adjacent thereto.
Patent GB-289746-A (GB)
Title: Improvements in and connected with smokers' pipes
IPC: A24F1/00
Filed: 1928-01-19
Abstract: 289,746. Vinten, H. B. Jan. 19, 1928. Tobacco pipes.- A tubular extension 6 with lateral openings 8 projects from the stem into the bowl above the base thereof. A bush 4 of hard material, which may be flanged, separates the extension from the bowl and is secured by grub-screws 5.
Patent GB-210275-A (GB)
Title: Improvements relating to cooling and preserving chambers for foodstuffs
IPC: F25D17/00
Filed: 1923-01-22
Abstract: 210,275. Rayson, R. Jan. 22, 1923. Ventilators with air conditioning apparatus.- In apparatus of the kind described in Specification 165,980 for de-freezing foodstuffs, the circulating air is caused to flow up through the hollow stem 3 of a member 1 and through holes 8 in the base of a cone member 5 that is adjustably mounted on the stem, and is then deflected by means of an inverted cone member 4, also adjustable on the stem, so as to pass through a grating 10 in the roof of the refrigerating chamber or hatch-way 11. A tank 6 formed of channeliron or cement is adapted to hold hot or cold water for attemperating or humidifying the air in its passage through the airways 7.
Patent GB-483765-A (GB)
Title: Improvements in the manufacture and production of lead chromate colours containing lead molybdate
IPC: C09C1/00
Filed: 1937-01-25
Abstract: Pigments comprising mixed crystals of lead chromate and lead molybdate are obtained by reacting a suspension of a basic lead compound such as the oxide, hydroxide, carbonate or basic carbonate with a solution of chromium trioxide in the presence of molybdic acid or a molybdate, and if desired in the presence of sulphuric acid. When molybdates are used, an acid which forms a soluble lead salt, such as nitric or acetic acid, is added in an amount at least equivalent to the molybdate.  Acid and/or buffer substances are preferably added before, during or after the conversion, the hydrogen ion concentration being adjusted to between 10-2 and 10-6.  The colour of the product may thus be varied from orange to red, yellowish shades being obtained at very high and very low pH values within the range and reddish shades at mean pH values.  Diluents or fillers, such as heavy spar or aluminium hydroxide, may be added to the products.  In one example, a suspension of white lead at 25-30 DEG  C. is reacted with a solution of chromium and molybdenum trioxides.  In another example, to a suspension of litharge, there is added a solution of chromium trioxide, sulphuric acid, ammonium molybdate and nitric acid.  Acetic acid and aqueous ammonia are added to produce a pH value of 4,0.  The mixture is stirred until the colour shade undergoes no further deepening.
Patent GB-524112-A (GB)
Title: An appliance for aligning and temporarily holding adjacent lengths of pipe or other tubular members
IPC: F16L1/10
Filed: 1939-01-23
Abstract: 524,112. Laying and jointing pipes. STREDWICK, E. N. Jan. 23, 1939, No. 2243. [Classes 99 (i) and 99 (ii)] A device for aligning and temporarily holding adjacent lengths of pipe for jointing comprises bars 1, 4 hinged together at 5, the bar 4 having an upstanding lug 7, and a handle 6. The device is placed in the outer pipe section 14' so that a foot-plate 2 on the bar 1 is located by a stop 3 in the base of the adjacent pipe section 15. The bars are then pivoted so that the lug 7 engages the wall of section 14. The device is locked when alignment is attained by a pawl 12 and rack 13. The height of the lug 7 may be adjustable for different pipe sizes. A spiritlevel may be provided on the bar 1.
Patent GB-786317-A (GB)
Title: Improvements connected with expansible spring braclets or the like
Inventor: SHOWELL HENRY
IPC: A44C5/06
Filed: 1955-01-26
Abstract: 786,317. Bracelets. SHOWELL, Ltd., H. Jan. 23, 1956 [Jan. 26, 1955], No. 2278/55.. Class 43 In an expansible bracelet of the lazy-- tongs type wherein pairs of centrally pivoted links normally tend to close under the action of springs embodied in the link units, and the connection between one end of a link and the end of an adjacent link comprises a headed pin 3a located within a key-hole slot 2a, shutter plates 1 which are pivotally mounted on the central pivots: 4 are provided to close or shutter a part of the key-hole slots to prevent inadvertent displacement or uncoupling of the links of the bracelet. A helical closing- spring 5 located within a tubular rivet which forms the central pivot 4 has end extensions which engage behind offset lugs 2d on the respective links 2 and 3. Fig. 6 shows the shutter plate 1 which has oppositely directed tongues 1a shaped to cover part of the wider portions of the key-hole slots 2a to prevent emergence of the headed pins 3a when the shutter plate is turned into the requisite position. The longitudinal edges of the cover plates 2b, Fig. 7 (not shown), forming part of thelink unit are formed with slots to facilitate manipulation of the shutter plates 1, and the latter are preferably provided with notched finger pieces 1c for the insertion of a thumb-nail or finger-nail.
Patent GB-1064281-A (GB)
Title: Improvements in or relating to self-locking actuators for the rotary movement of an element between two end positions
Inventor: KING HENRY VERNON
IPC: B64C29/00
Filed: 1963-01-18
Abstract: 1,064,281. Controlling propulsive jets on aircraft. PLESSEY-U.K. Ltd. Jan. 16, 1964 [Jan. 18, 1963], No. 2284/63. Heading B7G. [Also in Division F1] A shaft 1 for operating an eyelid type deflector in the jet pipe (not shown) of an aircraft jet propulsion engine carries a lever having two arms 2, 3 and two part-circular cam faces 4, 5 formed with recesses 6, 7. The arms are connected to the piston-rods 10 of a pair of rams the cylinders 8 of which are pivoted to a rigid beam 13. A selector valve 15, manually operated by a control rod 33, is bolted, as by flanges 29, 28, to a sequencing valve 14 which moves, through links 64, 18 a pair of rollers 16, 17 carried by swinging arms 62, 63 arranged so that the rollers 16, 17 may engage respectively the recesses 6, 7 to lock the eyelid deflector in either of its two positions. To establish fluid connection between the ends of each ram, fluid is led through the pivot 12 on the beam 13 to a rigid pipe 51 which passes through the piston 9 into a tubular member 52, the end of pipe 51 being sealed by a gland 61. The member 52 is screwed at 54 into an eyelet 55 forming the pivot 11 for arm 2 or 3 and at the other end it is formed with a head 53 which bears against piston 9, the member 52 thereby acting as a bolt to clamp between the piston 9 and the eyelet 55 a tube 57 forming the outer wall of piston-rod 10, which is slidably sealed at 58 within an end plate 59 of cylinder 8. Apertures 56 in member 52 and apertures 60 in member 57 pass fluid from pipe 51 through an annular space between members 52 and 57 into the cylinder 8 behind piston 9. The selector valve 15 has a bore 19 open at 20 to atmosphere and connected at 21 to a pressurefluid supply. Further ports 22 and 23, equally spaced from port 21 connect by passages 24 and 25 to the ends of a bore 27 in the sequence valve 14, separated from bore 19 by a diaphragm 34. A slide valve 30 having carbon seals 31, 32 is housed in bore 19 and is locked in either of two positions by spring-fingers 50 engaging internal grooves in the valve. A combined slide valve and piston element is housed in bore 27, the piston having carbon seals 40, 41 formed with a groove 42 which communicates through restricted bores with axial bores 43 in a piston-rod 36 connected to the catchoperating link 64. Spring-fingers 46 which engage internal grooves 47, 48 in the piston-rod 36 lock piston 35 in either of its two positions in the event of pressure-fluid failure. In operation of selector valve 15, piston valve 14 is actuated to free one of the rollers 16, 17 from its recess whilst bringing the other to bear on its corresponding cam face 4, 5. Pressure fluid is then applied to opposite sides of the pistons 9 to apply a couple to arms 2, 3 to actuate the eyelid deflector, the roller on the cam face then dropping into its recess to lock the deflector in position.
Patent GB-266513-A (GB)
Title: Improvements in or relating to diaphragms for telephones, talking machines and the like
IPC: H04R7/20
Filed: 1926-01-26
Abstract: 266,513. French, R. Jan. 26, 1926. Diaphragms.-A diaphragm for use as a loudspeaker or as a gramophone is provided with a cylindrical member extending rearwardly from the periphery having resilient means in it or connected to it. Fig. 1 shows the application to a gramophone of the type described in Specification 245,547 in which the cylindrical member 12 is corrugated and mounted on radial fingers 13. Instead of the member 12 being corrugated to produce resiliency, a resilient mounting 22 may be employed, Fig. 4. Specification 262,255 also is referred to.
Patent GB-477590-A (GB)
Title: Improvements in or relating to rollers for use in producing profiled sections from sheet metal
IPC: B21D5/08
Filed: 1937-01-26
Abstract: 477,590. Making profile sections. METAL TRIM, Ltd., and PENKALA, E. Jan. 26, 1937, No. 2290. [Class 83 (iv)] Angular bending.-Rolls for forming profile sections are built up of a number of suitably shaped rings 3, 4 assembled with distance pieces on spindles 1, 2 so that they can be interchanged in any way or replaced to make other profile sections. The spindle bearings can be adjusted along the spindle as required. The roll parts have slots to suit the keys 1a on the spindles. The spindles have shoulders 1b between which and a clamping nut the roll parts are held together. The assemblage may be made to provide a roll pass with parts of no roll pressure at places where the section is liable to be thinned or stretched as described in Specification 477,592. Specifications 477,581, 477,589, and 477,591 also are referred to.
Patent GB-265576-A (GB)
Title: Rotary pump
IPC: D01D1/09
Filed: 1927-01-26
Abstract: 265,576. Bechler, A. Feb. 4, 1926, [Convention date]. Movable - abutment type; driving pumps; bearings, arrangement of.-The driving pulley 12 of a rotary gear wheel pump is mounted on a sleeve 15 supported within the pump casing and is operatively connected with the pump gears bv means of a shaft 11 which traverses: the sleeve and which has universal joint couplings with the pulley and one of the pump gears 4. The sleeve may be formed by an extension of the hub of the pulley and retained in the casing by a stud but with rotarv freedom. The connections may be of a pin and slot form or, as shown, consist of squared ends 10 on the shaft 11 engaging similar recesses in the pulley 12 and pump pinion 4. The two gears 4, 5 are loosely mounted in their recesses so as to be capable of radial movement into contact with the circumferential walls under the pressure of the liquid.
Patent GB-541646-A (GB)
Title: Improvements in and relating to the production of felted fibrous material in sheet form
IPC: D21F1/60
Filed: 1940-02-06
Abstract: 541,646. Cylinder paper-making machines &c. PAPERCRETE, Ltd., and NEWBOULD, M. G. R. Feb. 6, 1940, No. 2311. [Class 96] In a cylinder paper- or pulp-forming machine, the cylinder mould 1 has suction applied over an area, of the submerged part of the surface, which is adjustable as for control of web thickness. A plain or corrugated mould wire 6 is supported on metal strips 5 tapered longitudinally to facilitate wire-tightening and surrounds a segmental cylinder or shell 7 on end-plates adjacent those of the cylinder 1, a sleeve on one of which carrying a wormwheel allowing the adjustment to be made whether the machine is stationary or in operation. The shell 7 has flanges 9 presenting bearing surfaces against the interior of the cylinder 1 to form compartments one of which is for drawing air through the pulp web, another is at atmospheric pressure, there may be-another at higher pressure to facilitate transferring the web, and the remainder of the surface of the cylinder 1 is exhausted through a channel 16 &c. the submerged portion of this area varying with the adjustment by the worm gearing. The suction space 17 is drained of water in any position of adjustment of the shell 7 by pipes 18 19, 20. The invention may be used in multicylinder machines as disclosed in Specification 518,362.
Patent GB-511480-A (GB)
Title: Apparatus for determining and measuring irregularities in the profile of a surface
IPC: G01B5/28
Filed: 1939-01-23
Abstract: 511,480. Surface gauges. AKTIEBOLAGET C. E. JOHANSSON. Jan. 23, 1939, No. 2335. Convention date, Feb. 2, 1938. [Class 106 (ii)] In a device for gauging irregularities in surfaces in which a needle is movable towards the surface and is associated with a measuring instrument indicating its movements the surface and needle being also capable of lateral relative movement, the needle is raised before any lateral movement takes place. A base 10 supports a screw-threaded standard 11 over which a block 12 may be moved by rotating a nut 13, the block being split and provided with a clamping screw 14 by which it may be secured at the point of adjustment. Two flat springs 17 which support the indicating instrument 18 are secured to the block 12. An arm 19 also attached to the block 12 carries a micrometer screw 20. A very fine needle 24 is carried by the plunger 23 of the instrument 18 which is provided with protecting lugs 26 at either sids of the needle. Between the lugs and embracing the needle is the forked end of an arm 27 normally pressed down by a spring 30 and connected by a thread 31 passing over a pulley. 32 to a lever 33 pivoted to the end of a support 34 secured to the arm 19. In use, the surface 45 or 46 to be examined is placed on the base 40 and the block 12 adjusted by turning the nut 13 until the lugs 26 touch the surface and the block 12 locked by turning, the, screw, 14. The indicator is now. adjusted to a suitable point above the surface by turning the screw 44' which bears against the block 12. The block is slotted at 41 and screws 42. passing through the..outer screw into the part 12a. These are thus pulled out to raise the indicator. The pawl 39 is now used to release the lever 33 which. allows. the spring 30 and arm 27 to release the needle 24 which engages the work. The position opposite 25 is.read and. for the next operation the needle has to be moved laterally A thimble 35 is connected to the spindle 37 by a lost motion device afforded by curved slot 31 and pin 38. On rotating the thimble, it first moves the lever 33 to the dotted line position raising the'needle. Further turning bends the springs 17 and moves the indicator laterally by an amount measured on the screw. The needle is released and a second reading is now taken as before and so. on.